package com.day05;

public class ArgsDemo2 {
    public static void main(String[] args){
        int [] arr={10,20,30};
        System.out.println("调用change方法前"+arr[1]);
        change(arr);
        System.out.println("调用change方法后"+arr[1]);
    }
    public static void change(int[] arr){
        arr[1]=200;
    }
}
